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Marketable Securities (Tables) | 9 Months Ended
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Jul. 02, 2016
Marketable Securities [Abstract] |
Available-for-sale Securities | The amortized cost and fair value of marketable securities as of July 2, 2016 were as follows:
| July 2, 2016
| Amortized cost |  | Gross unrealized gains |  | Gross unrealized losses |  | Fair value
| (in thousands)
Certificates of deposit | $ | 680 |  |  | $ | — |  |  | $ | — |  |  | $ | 680 |
Commercial paper | 9,934 |  |  | — |  |  | (4 | ) |  | 9,930 |
Corporate notes/bonds | 31,579 |  |  | 11 |  |  | — |  |  | 31,590 |
US government agency securities | 2,406 |  |  | — |  |  | — |  |  | 2,406 |
| $ | 44,599 |  |  | $ | 11 |  |  | $ | (4 | ) |  | $ | 44,606 |
Investments Classified by Contractual Maturity Date | The following table presents our available-for-sale marketable securities by contractual maturity date, as of July 2, 2016.
| July 2, 2016
| Amortized cost |  | Fair value
| (in thousands)
Due in one year or less | $ | 11,387 |  |  | $ | 11,380 |
Due after one year through three years | 33,212 |  |  | 33,226 |
| $ | 44,599 |  |  | $ | 44,606 |

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